Saw these two *toys* at REI today - one of those stores for crunchy, Cambridge, Massachusetts trust-funders:
Hah! My son already knows about *renewable wind power*....I usually make him pull my finger.
If these eco-pagan gifts are a little too advanced for your target, then allow me to recommend that $60 Thomas The Tank recycling center.
BTW, I've resolved to devastate planet Earth; yesterday, I went out and bought everyone left on my list a digital picture frame!
[Not for anything....but that *wind power* toy was an ingenious invention. Probably won't take much for government school science departments to all add it to their core curricula!]